Senior Fullstack Developer (Python + LLMs) – Contract to Hire at G2i

Senior Fullstack Developer (Python + LLMs) – Contract to Hire Location: Remote (LATAM preferred) Rate: Up to USD $65/hour (Contract, with potential full-time conversion) About the Opportunity G2i is partnering with an innovative, fast-growing AI startup building cutting-edge solutions focused on intelligent document (PDF) processing. This is a high-impact role for a senior engineer who thrives in early-stage environments and has hands-on experience building and deploying LLM-powered systems from the ground up. You’ll work directly with a highly energetic and driven founder, so we’re looking for someone who matches that enthusiasm and enjoys fast-paced, collaborative environments. What You’ll Do - Design and build scalable backend systems using Python - Develop and deploy LLM-based features from 0→1 (prompting, fine-tuning, orchestration, etc.) - Integrate LLMs into production-grade applications - Architect and implement APIs and services for AI-driven workflows - Collaborate closely with the founder and product team to shape the technical direction - (Optional) Contribute to frontend development using React/Convex What We’re Looking For - Strong experience as a Senior/Staff-level Fullstack or Backend Engineer - Deep expertise in Python - Proven experience working with LLMs in production (OpenAI, open-source models, or similar) - Experience building and launching LLM products from scratch (0→1) - Solid background in startup environments (early-stage, high ownership) - Strong backend and system design skills - Ability to independently build integrations and ship quickly Nice to Have - Experience with React and/or Convex - Familiarity with AI-driven document processing or similar domains Behavioral Fit - High energy and proactive mindset - Comfortable working closely with a passionate, fast-moving founder - Strong communication skills and ownership mentality Engagement Details - Contract role (up to USD $65/hour) with strong potential to convert to full-time - Fully remote, with preference for candidates based in LATAM If you’re excited about building AI products from the ground up and want to work in a fast-paced startup environment, we’d love to connect.